Home / 61,309.83-91,965.05-18,615.63

Finding the Fourth Proportional to 61,309.83, 91,965.05 and 18,615.63

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Solution

The fourth proportional to 61,309.83, 91,965.05 and 18,615.63 is: 27,923.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,309.83 : 91,965.05 = 18,615.63 : x
  2. Step 2: Convert to fraction form
    61,309.83/91,965.05 = 18,615.63/x
  3. Step 3: Cross multiply
    61,309.83x = 91,965.05 × 18,615.63
  4. Step 4: Simplify right side
    61,309.83x = 1,711,987,250.65
  5. Step 5: Solve for x
    x = 1,711,987,250.65/61,309.83
  6. Step 6: Final answer
    x = 27,923.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.